solve for x: 5x – 2x = 21 simplify your answer as much as possible.​

Answers

Answer 1

Answer:

x=7

Step-by-step explanation:

5-2 is 3

21 divided by 3 is 7

therefore 7 is x

Answer 2

Answer: 5x = 5 times 5. 2x = 2 times 2

AKA 25-4=21


Related Questions

How to do this cause this is hard

Answers

Answer:

6.28

Step-by-step explanation:

c=d(pi)

c=2(3.14)

Georgia is wrapping a shoe box with dimensions 12 x 5 x 7. What is the surface area of her box?

Answers

Answer:

358 feet²

Step-by-step explanation:

Answer:

358

Step-by-step explanation:

A= 12 x 5

= 60

x 2 = 120

A= 5 x7

= 35

x 2 = 70

A = 12 x 7

= 84

x2 =168

(I multiply by 2 because 2 sides are equall)

Add:

120 + 70 + 168 = 358

Hope this helps!

A triangle has an area of 160 square inches and a base of 20 inches. What is the height?

Answers

This is the answer I hope u like it

HELPPP MEEE

Solve 12/y = 4/3

The solution is y=__

Answers

Step-by-step explanation:

12/y = 4/3

y=9

hope it helps you

Ms. Saeed paid $40,000 for her car. Every month she pays $320 towards her car. If she has $29,440 left. how many months has she paid for the car?

Answers

33 months
40,000-29440
Divide by 320 =33

There are 40 counters in a tub which are red and blue. If there are 8 more red than blue counters, how many red counters are there?​

Answers

There are 40 counters in a tub which are red and blue. If there are 8 more red than blue counters, how many red counters are there?

The answer 24

Answer:

24

Step-by-step explanation:

2x - 8 = 40

2x = 40 + 8

2x = 48

2x/2 = 48/2

x = 24

205, 201, 197,...
Find the 35th term.

Answers

Answer:

the 35th term or a(35) is 69

Step-by-step explanation:

the first thing you must do to solve this equation is to write for the nth term

this is

a(n) = 209 - 4n

i got 209 by adding 4 to 205 to find the 0th term

so to solve the equation for the 35th term oyu just plug it in

a(35) = 209 - 4(35)

a(35) = 209 - 140

a(35) = 69

please answer quick as possible ​

Answers

Answer:

The correct option is B

i just answer that on our test and i got A+

Answer:

p + 2

Step-by-step explanation:

[tex]A=lb \\ \\ \implies \: b = \frac{A}{l} \\ \\ \implies \: b = \frac{p(4 {p}^{2} - 16) }{4p(p - 2)} \\ \\ \implies \: b = \frac{4p({p}^{2} - 4) }{4p(p - 2)} \\ \\ \implies \: b = \frac{4p({p}^{2} - {(2)}^{2} ) }{4p(p - 2)} \\ \\ \implies \: b = \frac{\cancel{4p({p} - {(2)})}({p} + {(2)}) }{\cancel{4p(p - 2)}}\\ \\ \implies \huge \orange{ \: b =(p + 2)}[/tex]

A scale model of a ramp is a right triangular prism as given in this figure. In the actual ramp, the triangular base has a height of 1.2 feet. What is the surface area of the actual ramp, including the underside? Enter your answer as a decimal in the box.

Answers

The surface area of the actual ramp is 16.8 ft²

What is an area?

An area is the amount of space occupied by the two dimensional shape or object.

The height of the actual ramp = 1.2 feet and the height of the model = 6 cm

Scale factor = 1.2 feet / 6 cm = 0.2 ft/cm

Actual base = 16 cm * 0.2 ft/cm = 3.2 ft

9 cm = 9 cm * 0.2 ft/cm = 1.8 ft, 10 cm = 10 cm * 0.2 ft/cm = 2 ft,

Surface area of actual ramp = 2(0.5 * 3.2 ft * 1.2 ft) + 2(2 ft * 1.8 ft) + (1.8 ft * 3.2 ft) = 16.8 ft²

The surface area of the actual ramp is 16.8 ft²

Find out more on area at: https://brainly.com/question/25292087

0.5=1/3-|(x-3)/6+x| What is x?

Answers

Answer:

the answer here is x=2. it makes it 2/3 equivalent to 4/6 then 4/6-1/6 equals 3/6 which is equivalent to .5 or 1/2. i hope this Helps

Step-by-step explanation:

0.5=1/3-|(x-3)/6+x|

9. JKLM is a rhombus with diagonals JL and KM intersecting at N. JL = 18 cm and KL = 15 cm
Find MK.

Answers

Answer:

[tex] \tan( \beta ) [/tex]

here we go hope it helps

Kayla earns 80.00 per day at her job and spends 4.00 per day on transportation. What set of integers best represents these values?​

Answers

Kayla earns 80.00 per day at her job and spends 4.00 per day on transportation. What set of integers best represents these values?

Seven minus a number split into 9 equal parts in one

Answers

Answer:

x = 54

Step-by-step explanation:

Seven minus a number split into 9 equal parts in one

7 - (1/9)x = 1

7 - 1 = (1/9)x

(1/9)x = 6

x = (9)(6)

x = 54

PART 3 OF ME ASKING FOR HELP

Answers

Answer:

c

Step-by-step explanation:

3(a+2)+-8=7Please who can solve the equation for me

Answers

Answer:

3

Step-by-step explanation:

3a + 6 - 8 = 7

3a - 2 = 7

3a = 9

a = 3

Let me know if this helped <3

Answer:

3+8+11-8=3x2=6=7

A=1

Step-by-step explanation:

My head just went crazy thinking about that so please mark me as brainliest

Can anyone solve this correctly?

Answers

Answer:

C. 113.04 ft²

Step-by-step explanation:

Area of a circle = π×radius²

Since diameter is 12, the radius is 6

π×(6)²  =   π×36   =   113.04


PLEASE HELP THANK YOU

10.
At a bankruptcy sale, stereo sets were advertised at 60% off. Sales tax is l%. HOW
much would be paid in all for a stereo regularly selling for $68.95?

Answers

Answer:

27.86

Step-by-step explanation:

find percent off

68.95 × 0.60 = 41.37 amount percent off

68.95 - 41.37 = 27.58 total advertised price with out tax

sales tax

27.58 × 0.01 = 0.2758 tax amount

27.58 + 0.2758 = 27.8558 = 27.86 total with tqx

Which expression is equivalent to 4(x + 3) - 2 - x - 5)?

A 4x + 3 - 2x + 5
B 4x + 12 + 2x + 10
C 4x + 12 – 2x – 10
D 4x + 3 + 2x - 5

Answers

Answer:

B

Step-by-step explanation:

4(x+3) is 4x+12 and -2(-x-5) is 2x+10 so it makes 4x + 12 + 2x + 10

ABC is a triangle, right-angled at A. If AB = 6 and AC = 8, find BC.

Answers

Given :

ABC is a right angled triangle at A where AB is 6cm, AC is 8cm.

To Find :

BC.

Solution :

Let the Base be AB cm, Perpendicular be AC cm and Hypotenuse be BC.

We know that,

[tex] \qquad \sf{ \pmb{(Hypotenuse ) {}^{2} = (Base) {}^{2} + (Perpendicular) {}^{2} }}[/tex]

Substituting the given values in the formula :

[tex] \qquad\sf{ \dashrightarrow{ ( BC ) {}^{2} = (AB) {}^{2} + (AC ) {}^{2} }}[/tex]

[tex] \qquad\sf{ \dashrightarrow{ ( BC ) {}^{2} = (6) {}^{2} + (8 ) {}^{2} }}[/tex]

[tex] \qquad\sf{ \dashrightarrow{ ( BC ) {}^{2} = 36 + 64 }}[/tex]

[tex] \qquad\sf{ \dashrightarrow{ ( BC ) {}^{2} = 100 }}[/tex]

[tex] \qquad\sf{ \dashrightarrow{ BC {} = \sqrt{100} }}[/tex]

[tex] \qquad\sf{ \dashrightarrow{ BC {} = 10 }}[/tex]

Therefore, BC = 10 cm

Here is a list of numbers.
-45 -21 -16 12 33 40
(a) write down two numbers from the list that add up to -9

Answers

Answer:

-21, 12

Step-by-step explanation:

We first have to solve each of the list of numbers:

-45 -21 = -66

-21 - 16 = -37

-16+12=-4

33+40=73

-45-16=-61

-45+33 = -12

-45 + 12 = -33

-21 + 12 = -9

Hence, we can conclude that -21 and 12 add up to -9

~Learn with Lenvy~

SOMEONE PLEASE HELP HONEST AWNSERS! !

Answers

Answer:

D.

[tex]\frac{2d^{2}-2d-38 }{(d+5)(d+3)}[/tex]

Step-by-step explanation:

Remove any grouping symbol such as brackets and parentheses by multiplying factors.

Use the exponent rule to remove grouping if the terms are containing exponents.

Combine the like terms by addition or subtraction.

Combine the constants.

A flag pole casts a shadow that’s 5 feet. A rope attached to the flag is 13 feet long . How tall is the flag poll

Answers

Answer:   12 feet

Explanation:

I'm assuming the rope is fully taut and connects the top of the flag pole with the tip of the shadow.

Draw a right triangle that has a horizontal leg of 5 feet and a hypotenuse of 13 feet. I'll call these a = 5 and c = 13.

Use the pythagorean theorem to find b

[tex]a^2 + b^2 = c^2\\\\5^2 + b^2 = 13^2\\\\25 + b^2 = 169\\\\b^2 = 169-25\\\\b^2 = 144\\\\b = \sqrt{144}\\\\b = 12[/tex]

The vertical leg of the right triangle is 12 feet, which is the height of the flag pole. We have a 5-12-13 right triangle.

Find the measure of the missing angle.

Answers

Answer:

a = 146

Step-by-step explanation:

The line is 180 degrees so one angle is 34 degrees and the other one would have to add up with it to make 180 degrees. This is where the 146 degrees comes in.

146 + 34 = 180 = degrees

Which of the following ordered pairs is represented by a point located on the y-axis?
(0,3)
(4,-4)
(1, 1)
(-2, 0)​

Answers

Answer:

(0'3)

Step-by-step explanation:

the line going across is the x axis the one going up and down is the y-axis the first number goes on the x-axis which is zero so it stays in the middle and three the second number goes on the up and down line which is the y axis

Answer:

(0'3)

Step-by-step explanation:

Jessica took out a Stafford loan worth $7,175 at the beginning of her six-year college career. The loan has a duration of ten years and an interest rate of 6. 3%, compounded monthly. How much greater will Jessica’s monthly payment be if the loan is unsubsidized than if the loan is subsidized? Round all dollar values to the nearest cent. A. $36. 98 b. $23. 07 c. $37. 67 d. $166. 37 Please select the best answer from the choices provided A B C D.

Answers

Answer:

It’s option A, Choi’s option A

Step-by-step explanation:

Given the definitions of f(x) and g(x) below, find the value of (gºf)(-5).
-
f(x) = x2 + 6x + 3
g(x) = 2x + 8
-

Answers

Answer:

(g ○ f)(- 5) = 4

Step-by-step explanation:

evaluate f(- 5) then substitute the value obtained into g(x)

f(- 5) = (- 5)² + 6(- 5) + 3 = 25 - 30 + 3 = - 2 , then

g(- 2) = 2(- 2) + 8 = - 4 + 8 = 4

(g ○ f)(- 5) = 4

The back of Nico’s truck is 7.5 feet long, 4 feet wide, and 8 feet tall. He has several boxes of important papers that he needs to move. Each box of papers is shaped like a cube, measuring 2.5 feet on each side. How many boxes of papers can Nico pack into the back of his truck? Show your work.

Answers

Answer:

Step-by-step explanation: so

l*w*h
7.5ft*4ft*8ft

that would be 240ft^3

Then 2.5^3

would be 15.625^3

So then u would do

240ft^3/15.625ft^3 = 15.36 boxes of paper


So u could fit abt 15 boxes of paper in the back of his truck

PLEASSEEEE HELPPP!!!!! MATH IS NOT MY STRONGEST SUBJECT

A formula for calculating simple interest is I = Pr, where I is the interest earned in dollars, P is the principal or original investment, and r is the fixed rate of interest. If the amount of interest earned is $2.25 and the interest rate is 3%, what is P?

F. $6.75
G. $7.50
H. $13.30
J. $67.50
K. $75.00

Answers

Answer:

as I = Pr

Step-by-step explanation:

we have to find P so

P=I/r

P = 2.25/3

P = 0.75

. A projector displays a rectangular image on a wall. The height of the wall is x feet. The area (in square feet) of the projection is represented by x2 - 12x + 32. The width of the projection is (x - 4) feet. - a. Write a binomial that represents the height of the projection. a​

Answers

We need x

[tex]\\ \rm\rightarrowtail x(x-4)=x^2-12x+32[/tex]

[tex]\\ \rm\rightarrowtail x^2-4x=x^2-12x+32[/tex]

[tex]\\ \rm\rightarrowtail 8x=32[/tex]

[tex]\\ \rm\rightarrowtail x=4ft[/tex]

How do you write 3.5 × 10^3 in standard form?

Answers

Answer:

[tex]3500[/tex]

Step-by-step explanation:

Given the following question:

[tex]3.5\times10^3[/tex]

To convert a scientific notation into standard form we first need to keep in mind that the exponent in indeed a positive. Knowing this we know that the decimal point is going to move to the right.

Since the exponent is three, we know that the decimal point is going to move to the right THREE times.

[tex]3.5\times10^3[/tex]
[tex]3.5\times10^3=3.5.0.0.[/tex]
[tex]3.5.0.0.=3500[/tex]
[tex]=3500[/tex]

Your answer in standard form is "3500."

Hope this helps.

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